Year 9: Tectonics

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Across
  1. 2. Small particles of rock released during a volcanic eruption
  2. 3. A crack in the Earth’s crust where movement occurs
  3. 7. Caribbean country hit by a devastating earthquake in 2010
  4. 9. Observing volcano or earthquake activity over time
  5. 10. Relating to earthquakes or vibrations in the Earth
  6. 14. The release of lava, ash and gases from a volcano
  7. 16. Sudden shaking of the ground caused by plate movement
  8. 17. A plate boundary where plates move towards each other
  9. 20. The point underground where an earthquake begins
  10. 21. A smaller earthquake after the main earthquake
  11. 22. Molten rock beneath the Earth’s surface
  12. 23. A plate boundary where plates move apart
  13. 24. A forecast about when a volcanic eruption may happen
  14. 27. A large section of the Earth’s crust
  15. 28. The place where two tectonic plates meet
  16. 29. Volcano in the Philippines that erupted in 1991
  17. 30. The semi-molten layer beneath the crust
  18. 31. An opening in the Earth’s crust where magma escapes
  19. 32. A volcano that is currently erupting
Down
  1. 1. Molten rock that erupts onto the Earth’s surface
  2. 4. The study of the movement of Earth’s plates
  3. 5. A scale used to measure earthquake magnitude
  4. 6. A volcano that is not expected to erupt again
  5. 8. The centre of the Earth
  6. 11. The thin outer layer of the Earth
  7. 12. New Zealand city damaged by a major earthquake in 2011
  8. 13. Ground turning soft and unstable during an earthquake
  9. 15. A huge sea wave caused by an underwater earthquake
  10. 16. The point on the Earth’s surface directly above an earthquake
  11. 18. A volcano that may erupt again
  12. 19. When one tectonic plate sinks beneath another
  13. 25. A plate boundary where plates slide past each other
  14. 26. The measured strength of an earthquake